Now I am angry at my friend because he didn't keep to his words. Although I am still happy about the win, I wish he had given me back the $10. Then, I would have win bigger money.
Here's the thing buddy, don't be mad at your friend because he didn't return your money. Imagine you're losing all $10 on that bet and you will be left with nothing. Whatever happens, happens for a good reason. Now you have made $50 from $1 and you still have the $10 in your hand. In total, you can spend $60 later on.
Take everything positively. Maybe one day that friend will come handy just because you lend him $10 in his difficult situation. Do favor to other people and you will get the favor back 10 times.
Be happy with your winning and always bet minimum amount. You will be able to play more and lose less.
I also agree with what you say , things are Always somehow Arranged for the Better , and to Improve anything , we are people who Always do Whatever it takes to be Able to win in a Casino and that is Acceptable , in Each of us , What we do is Always good luck , if your friend didn't give you those 10usd, what does it Matter as they Said here Before , Imagine that you lost it in any game and that's it, I think that Sometimes this Type of case Prevails more in Friendship than Anything Else , the Money that was lost is not Much , it is something that Does not Have much Meaning when Bought with a Friendship, Perhaps your Brother Needed it much More than you , And Although he was Wrong in not Paying you , one Day he can Tell it to Let's see What he Can do to you , you don't Know , maybe he'll Apologize or he'll Give you the Blame , that can Happen but you have to Turn the Page , There are Benefits that can Lead one to certain causes Such as not Speaking to him Anymore because of money that Wasn't Even much , it was Something that was Very out of the Ordinary.
In some cases when Friends Fight over the Internet , it's just not worth Doing it because at the end of the day there are Things that are more Important , I have a friend who told me that Before he had Friends who Sometimes did things to him that he didn't Like , but That one Bad thing did not Erase Everything you had Shared With him that was Good , that is, Unless he had done something else apart and that had Affected You a lot , because it was Something that Could be done , but in Particular the things When they are Like that in that way they Should be done and Take it with a grain of Salt , that's why I Say , that Friend , I don't think that the bad Thing he did has Erased Other things that must be many Good , that's what we Should see , also as I Said Before , things Have to be Done in a Good way so that Things do not Affect Things Later and Cannot be done in other Ways , you Always have to do Your best to be Able to be good , and Despite Everything , Demonstrate what you are , yes You are a beautiful Person , not Worth the Resentments.